Home / 3,860.20-5,327.16-2,288.20

Finding the Fourth Proportional to 3,860.20, 5,327.16 and 2,288.20

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Solution

The fourth proportional to 3,860.20, 5,327.16 and 2,288.20 is: 3,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.20 : 5,327.16 = 2,288.20 : x
  2. Step 2: Convert to fraction form
    3,860.20/5,327.16 = 2,288.20/x
  3. Step 3: Cross multiply
    3,860.20x = 5,327.16 × 2,288.20
  4. Step 4: Simplify right side
    3,860.20x = 12,189,607.51
  5. Step 5: Solve for x
    x = 12,189,607.51/3,860.20
  6. Step 6: Final answer
    x = 3,157.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.